Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<title>Test custom elements get function.</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<iframe id="iframe"></iframe>
<script>
const testWindow = iframe.contentDocument.defaultView;
const customElements = testWindow.customElements;
ok('customElements' in testWindow, '"window.customElements" exists');
ok('define' in customElements, '"window.customElements.define" exists');
ok('get' in customElements, '"window.customElements.get" exists');
const name = 'test-get-existing';
class C extends HTMLElement {};
customElements.define(name, C);
is(customElements.get(name), C, 'get() returns the constructor');
is(customElements.get('test-get-not-defined'), undefined,
'get() returns undefined for not-defined name');
</script>
</body>
</html>